You have to understand the amount of combo's that are present for each hand. Like how many combo's are there of Q:cT? How many of AJsuited?

You can use Equilab for this to help you with this but you have to understand this otherwise you are continueing playing like this

- Gerv

Can you teach me how can I use Equilab to count the combos?

If you go to the Hand Matrix of Equilab, on the bottm right corner of every cell, you see a number. That represents the amount of combo's

Now when you select 76s for example and click OK in the matrix, it comes back to the calculator. Hoover your pointer on the ''76s'' and you see it popups the amount of combo's 76s has with or without card removal.

But this is more of studying the combinatorics yourself. 76s has 4 combo's (1 of each suit). any PP has 6 combo's (write them out
)

Is it ok if I xb the flop here?

It depends on the opponent but I am more liking a bet on a flushdraw Axx board than on a rainbow board. There is no real one good answer here